File:Patent-GB-469484.pdf

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Inventor	Henry Frederick Charles Burnham, Henry Charles William Burnham
Assignee	Henry Frederick Charles Burnham, Henry Charles William Burnham
Country	GB
Application N°	4575/36
Application Date	1936-02-14
Patent N°	469484
Brevettato	1937-07-27
Priorità	1936-02-14
Brand	Burnham
Title	Improvements in fountain pens
Description	Caricamento a torsione

Brevetto per una variante di sistema di caricamento a torsione (twist filler).

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	23:51, 30 June 2019		1,296 × 1,754, 4 pages (334 KB)	Piccardi (talk \| contribs)	{{PatentInfo \|Inventor=Henry Frederick Charles Burnham, Henry Charles William Burnham \|Assignee=Louis Badois \|Country=GB \|ApplicationNum=4575/36 \|ApplicationDate=1936-02-14 \|PatentNum=469484 \|PatentDate=1937-07-27 \|PriorityDate=1936-02-14 \|Titolo=Impro...

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